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@polynomial
VC维理论和结构风险最小化准则是统计学习理论中的重要内容,基于这一理论的支持向量机算法由于具有好的泛化性能受到重视,并被研究用于文本分类问题.基于多项式核的研究工作认为SVM的泛化能力不受多项式阶数的影响,并且能够处理很高维的分类问题,用于文本分类无需进行特征选择.研究发现,随着多项式核阶数的升高,SVM文本分类器会出现过学习现象,并且特征数越多越明显,特征选择是必需的.通过估计函数集的VC维,基于结构风险最小化理论对此问题进行分析,得出的结论跟实验结果相符.
(err)
- 2008-01-08 21:41:08下载
- 积分:1
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Alamouti21
阿拉莫提编码2发1收代码,在BPSK的调制方式下(alamouti coding)
- 2010-05-27 15:52:12下载
- 积分:1
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Untitled2
一个有关ODFM仿真的程序,为平时通信原理大作业所用(A the relevant ODFM simulation program for the big job usually Communication Theory)
- 2013-04-16 10:32:28下载
- 积分:1
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kohonen
kohonen网络的聚类算法—网络入侵聚类(Case 29 kohonen network clustering algorithm- Network Intrusion clustering)
- 2013-12-08 20:01:10下载
- 积分:1
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ISM
基于宽带信号的DOA估计,采用经典的ISM算法,采用传统MUSIC算法,最后通过谱峰搜素算法得到估计的来波角(Based on broadband DOA estimation, using the classical ISM algorithm, after the traditional MUSIC algorithm, and finally through hormone peak search algorithm to estimate the wave angle)
- 2015-06-26 20:50:05下载
- 积分:1
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OFDM
说明: 基于MATLAB语言的OFDM(正交频分复用)技术仿真,考虑到了信道衰落和干扰因素,完全原创。(OFDM (orthogonal frequency division multiplexing) technology simulation based on Matlab, taking into account the channel fading and interference factors, entirely original.)
- 2010-03-31 22:42:54下载
- 积分:1
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Matlab
1-32是:图形应用篇
33-66是:界面设计篇
67-84是:图形处理篇
85-100是:数值分析篇
(1-32 are: application of articles 33-66 are graphic: interface design articles 67-84 is: is the graphics chapter 85-100: Numerical Analysis Section)
- 2010-05-26 19:59:20下载
- 积分:1
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photo1
图像处理的源代码,matlab图像的处理方面的程序(image processing of source code, Matlab image processing procedures)
- 2007-03-26 17:22:50下载
- 积分:1
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MIMO_Capacity_Simulation
MIMO系统容量的仿真程序来研究MIMO系统的容量可用于学习。(MIMO system capacity simulation program to study the MIMO system capacity can be used to learn.)
- 2014-12-01 11:22:56下载
- 积分:1
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Frequency-filtering
用matlab实现了简单的图像处理,频率滤波(Using matlab to achieve a simple image processing, frequency filtering)
- 2013-12-27 14:57:04下载
- 积分:1